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A Harvard study has revealed that frequent ejaculation may significantly reduce the risk of prostate cancer. The study found that men who ejaculated 21 or more times a month had a 31% lower risk of developing prostate cancer compared to those who ejaculated 4-7 times a month.
Prostate cancer remains a major health concern, yet its causes are still not fully understood. While genetics are known to play a significant role, lifestyle factors such as diet and sexual activity may also influence risk. The prostate, being a reproductive organ that produces fluid for ejaculation, has prompted researchers to investigate whether sexual factors impact cancer risk.
The study, part of the long-running Health Professionals Follow-Up Study, collected data from over 29,000 men between the ages of 46 and 81. Participants, mostly healthcare professionals, were asked about their average number of ejaculations per month during different life stages, including their 20s, 40s, and more recently. Ejaculations included those from sexual intercourse, nocturnal emissions, and masturbation. The study followed participants until 2000, gathering data on health and lifestyle factors every two years.
The findings were striking. Men who ejaculated 21 or more times a month showed a 31% reduction in the risk of prostate cancer, even when other lifestyle factors were accounted for. This was in contrast to men who reported ejaculating 4-7 times a month. The results suggest a protective effect of frequent ejaculation, although the exact reasons for this remain unclear.
In addition to the Harvard study, an Australian investigation of 2,338 men found similar results. The Australian study focused on the frequency of ejaculation before the age of 70 and showed that men who ejaculated more frequently, particularly in young adulthood, were less likely to be diagnosed with prostate cancer later in life. The protective effect appeared strongest when men had frequent ejaculations during their 20s and 30s.
Both studies highlight the importance of early sexual activity in influencing prostate cancer risk later in life, but more research is needed to understand the underlying mechanisms. The findings suggest that sexual habits during the developmental stages of the prostate may be crucial in determining cancer risk.
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